JPH0721818U - Soundproof panel - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object of the present invention to provide a soundproof panel which can be easily improved in soundproof performance and is inexpensive and easy to handle. [Structure] A soundproof panel 1 comprising a plurality of panel layers 2, 3, 5, 6 and comprising a plurality of panel layers 2, 3, 5, 6
At least one layer 3 has a hollow portion 7 capable of injecting and discharging the liquid W.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a soundproof panel used for, for example, a soundproof room or a soundproof box, or a wall, ceiling, floor or partition of a room in a house.

[0002]

[Prior art]

 Conventional soundproof panels consist of a single piece such as plywood which is a plate material, gypsum board, cement plate or aluminum plate which is a perforated plate, or a plurality of panel layers. There is one configured. As shown in FIG. 2, the latter soundproof panel 21 includes a sound-absorbing material 22 having a frame 25 attached to its peripheral edge, and two particles mounted on the front and back surfaces of the sound-absorbing material 22 so as to sandwich them. It is composed of three layers with boards 23 and 24.

In order to improve the soundproofing performance of these soundproofing panels, the soundproofing panel itself is made thicker in the case of a soundproofing panel made up of a single body. In a soundproof panel composed of three layers, the sound absorbing material is made thicker and the particle board is made thicker. Alternatively, one or more of these soundproof panels are combined and laminated in double or triple layers.

[0004]

[Problems to be solved by the device]

 According to the conventional soundproof panel, when it is desired to improve the soundproof performance, the soundproof panel has a large plate thickness or is formed by stacking a plurality of panel layers to reduce the weight. As a result, the problem is that it is difficult to handle, the transportation cost is high, and the soundproof panel becomes expensive.

The present invention has been made to solve such problems, and an object thereof is to provide a soundproof panel which can easily improve the soundproof performance and is inexpensive and easy to handle. There is.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a soundproof panel comprising a plurality of panel layers, wherein at least one of the plurality of panel layers is a hollow part capable of injecting and discharging a liquid. It is characterized by having.

In this case, in the soundproof panel, it is preferable that the surface of the panel layer having the hollow portion is formed in an uneven shape.

[0008]

[Action]

 In this soundproof panel, at least one of the plurality of panel layers has a hollow portion, and liquid can be injected and discharged into the hollow portion. Therefore, in this soundproof panel, by injecting the liquid into the hollow portion and collecting the liquid in the hollow portion, the attenuation rate of the energy of the sound wave passing therethrough can be increased, so that the soundproofing performance can be improved. You can On the other hand, the soundproof panel is easy to handle when the liquid is discharged from the hollow part or when the liquid is not injected into the hollow part, because the weight of the liquid becomes lighter because the liquid is empty. You can

According to the soundproof panel of the second aspect, since the surface of the panel layer having the hollow portion is formed in an uneven shape, when the sound wave passes through the panel layer, it hits the uneven surface. Due to the sagging, the energy of the sound wave is further attenuated by refracting and diffusing, so that the soundproofing performance is further improved.

[0010]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a soundproof panel according to this embodiment. As shown in FIG. 1, the soundproof panel 1 includes a sound absorbing panel 2 (panel layer) as a sound absorbing material, a water tank panel 3 (panel layer) provided on the front side of the sound absorbing panel 2, the sound absorbing panel 2 and a water tank. A frame 4 attached to the peripheral portion of the panel 3, and a front panel 5 and a rear panel 6 (panel layers) attached to the front and rear of the frame 4 are laminated in the front-rear direction.

The sound absorbing panel 2 is made of porous glass wool and is formed in a vertically long rectangular shape. Glass wool is made by melting glass and blowing high-pressure air or steam onto it to aggregate cotton-like fibers. Since glass wool has a large sound absorbing effect for sounds in the middle and high frequencies, it is used when it is desired to obtain a soundproofing effect for these tones. In addition, since the sound absorbing performance and hence the soundproofing performance of the glass wool vary depending on the density and thickness of the fiber layer, the density and thickness are appropriately selected and used according to the purpose of use in the room.

The water tank panel 3 is made of synthetic resin, such as polypropylene, and is formed into a hollow rectangular shape by blow molding. The water tank panel 3 is provided on the front surface of the sound absorbing panel 2. The aquarium panel 3 is composed of a back wall portion 7a formed in a corrugated shape (concavo-convex shape) and a front wall portion 7b formed in a flat shape, and a liquid such as water W is placed between them. A hollow portion 7 that can be stored is formed. An injection plug 8 for injecting water W into the hollow portion 7 is provided in the upper right portion of the front wall portion 7b, while the injected water W is discharged from the hollow portion 7 in the lower left portion. A discharge plug 9 is provided. Therefore, the water tank panel 3 can store the water W in the hollow portion 7 by closing the discharge plug 9 and opening the injection plug 8 to inject the water W. On the other hand, the water tank panel 3 can discharge the accumulated water W from the hollow portion 7 by opening the discharge plug 9.

The frame 4 is made of plywood, MDF, or a square member such as metal, and has a vertically long rectangular shape when viewed from the front. The frame 4 is attached to the sound absorbing panel 2 and the water tank panel 3 which are laminated so as to surround the upper and lower surfaces and the left and right side surfaces.

The front and rear panels 5 and 6 are composed of particle boards and the like, and are attached to the front and rear surfaces of the frame 4 so as to cover the sound absorbing panel 2 and the water tank panel 3 which are laminated. The front and rear panels 5, 6 are formed in the same shape and the same size as the frame 4 so that their upper and lower surfaces and left and right side surfaces are flush with the upper and lower surfaces and left and right side surfaces of the frame 4. Circular holes 10 are formed in the upper right portion and the lower left portion of the front panel 5, and the injection plug 8 and the discharge plug 9 of the water tank panel 3 can be seen from there. The front and rear panels 5 and 6 reflect the sound in the middle and high range and absorb the sound in the low range. Therefore, by combining with the above-mentioned porous sound absorbing panel such as glass wool, sound absorption for the whole range is achieved. The effect can be obtained.

Here, a method of using the soundproof panel 1 and a soundproofing operation will be described.

First, the soundproof panel 1 configured as described above is transported to the installation site by a vehicle or the like, with the hollow portion 7 of the aquarium panel 3 being empty. Then, the soundproof panel 1 is installed by attaching the rear panel 6 as a mounting portion to the ceiling surface or floor surface of the room to be installed. In these cases, the soundproof panel 1 is relatively light because the water tank panel 3 is empty, so that it can be handled easily from transportation to installation.

In this state, the soundproof panel 1 has a predetermined soundproof effect. That is, most of the sound wave energy in the low frequency range is absorbed by the front panel 5, while most of the sound wave energy in the middle and high frequency range is absorbed by the sound absorbing panel 2. More specifically, the sound waves taken in from the front panel 5 side of the soundproof panel 1 are partially absorbed by the front panel 5 and reach the aquarium panel 3, where one of the sound waves is further absorbed. The part is irregularly reflected by the corrugated back wall part 7a, and the other part is refracted and diffused when passing through the back wall part 7a, whereby the energy of the sound wave is attenuated. Furthermore, the energy of the diffused sound waves is effectively absorbed by the sound absorbing panel 2.

Here, in order to improve the soundproof performance, it is confirmed that the discharge plug 9 of the water tank panel 3 is closed, and then the injection plug 8 is opened and the water W is injected into the hollow portion 7. As a result, the water W is stored in the hollow portion 7 of the water tank panel 3.

In this state, the soundproof panel 1 has a water W layer formed in the water tank panel 3, and the energy of the sound waves taken into the water tank panel 3 through the front panel 5 is generated by the water W layer. Is attenuated. That is, the energy of the sound waves taken into the aquarium panel 3 is already reliably and effectively attenuated in the water W layer in the aquarium panel 3 before heading to the back wall portion 7a. Therefore, the soundproof effect between the rooms can be obtained more reliably and effectively.

Here, when the water W stored in the aquarium panel 3 is to be replaced or when the soundproof panel 1 is to be removed from the installation location, the discharge plug 9 should be fully opened and the injection plug 8 should be opened slightly. Thus, the water W is discharged from the water tank panel 3.

As described above, the soundproof panel 1 has a predetermined soundproof effect when the water tank panel 3 is not filled with water W, and is lightweight and convenient to handle. Further, by pouring the water W into the water tank panel 3 and storing the water W, a new soundproof layer can be formed as a result, so that the soundproof performance can be easily and appropriately improved. Therefore, the soundproof panel 1 is easy to handle by adopting the procedure of transporting the water tank panel 3 in an empty state, injecting the water W into the water tank panel 3 after installing it on the wall surface of the room, and the like. The soundproofing performance can be easily improved at low cost.

Although the water tank panel 3 is provided in a single layer in the embodiment, for example, the sound absorbing panel 2 may be sandwiched, or the sound absorbing panel 2 may be omitted and the water absorbing panel 2 may be provided in two or three layers. Good. Further, in the embodiment, the back wall portion 7a of the aquarium panel 3 is formed in a corrugated shape, but other unevenness, for example, a circular unevenness may be formed on the back wall portion 7a. Furthermore, corrugations and other irregularities may be formed only on the front wall portion 7b of the aquarium panel 3, or on both the back wall portion 7a and the front wall portion 7b. Further, in the embodiment, the water W is injected into the aquarium panel 3, but instead of the water W, another liquid such as a liquid having a low freezing point may be injected. In this case, there is no fear of freezing in winter, so it can be used as the outer wall of the room to obtain a heat insulating effect. In addition, the detailed configuration can be appropriately changed without departing from the spirit of the present invention.

[0024]

[Effect of device]

 As described in detail above, the soundproof panel of the present invention has the effects that the soundproof performance can be easily improved and that it is inexpensive and convenient to handle.

[Brief description of drawings]

FIG. 1 is a perspective view in which a part of a soundproof panel to which the present invention is applied is cut away.

FIG. 2 is an exploded perspective view of a conventional soundproof panel.

[Explanation of symbols]

 1 Soundproof panel 2 Sound absorption panel 3 Water tank panel 5 Front panel 6 Rear panel 7 Hollow part 7a Back wall part 8 Injection plug 9 Discharge plug W Water

Claims (2)

[Scope of utility model registration request] 1. A soundproof panel comprising a plurality of panel layers, wherein at least one of the plurality of panel layers has a hollow portion into which a liquid can be injected and discharged. 2. The soundproof panel according to claim 1, wherein the surface of the panel layer having the hollow portion is formed in an uneven shape.